{"product_id":"qbp759768","title":"Attwood Marine Integrated Fuel Demand Valve, Below-Deck, Ethanol Compatible","description":"\u003ch6\u003eOverview\u003c\/h6\u003e\u003cp\u003eThe Attwood Marine 99IFDV00-1 is an integrated fuel demand valve for below-deck fuel systems. It keeps tank pressure from pushing fuel into the distribution line when the engine is off, so fuel reaches the engine only when there is actual demand. This version has a built-in manual override and the valve body can be oriented in 12 positions during installation.\u003c\/p\u003e\u003cp\u003eFor fit and system planning, it is rated for operating input pressure up to 138 kPa (20 psi) and protected for a 276 kPa (40 psi) pressure spike. Flow performance is listed at 200 L\/H (53 GPH) at less than 2 kPa when used with a 1\/2 inch pickup tube and matching barb. It is also compatible with ethanol-blended fuels.\u003c\/p\u003e\u003ch6\u003eKey features\u003c\/h6\u003e\u003cul\u003e\n\u003cli\u003eIntegrated fuel demand valve for below-deck fuel systems\u003c\/li\u003e\n\u003cli\u003eKeeps tank pressure from pressurizing the fuel distribution line and engine side of the system\u003c\/li\u003e\n\u003cli\u003eBuilt-in manual override for service and setup\u003c\/li\u003e\n\u003cli\u003eValve can be clocked in 12 positions to help with hose routing and tank layout\u003c\/li\u003e\n\u003cli\u003eOperating input pressure up to 138 kPa (20 psi), with protection for a 276 kPa (40 psi) pressure spike\u003c\/li\u003e\n\u003cli\u003eFlow performance up to 200 L\/H (53 GPH) at less than 2 kPa in the stated test setup\u003c\/li\u003e\n\u003cli\u003eCompatible with ethanol-blended fuels\u003c\/li\u003e\n\u003cli\u003eCan eliminate the need for rigid fuel distribution lines in pressure-relief systems under ABYC H-24.15.9\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch6\u003eInstallation and fit\u003c\/h6\u003e\u003cp\u003eThis valve is installed at the tank and uses a 1\/2 inch NPT barb fitting or anti-siphon valve, which is not included. The mounting point should be flat and protected from twisting loads and foot traffic, which matters on boats where the tank bay is tight and service access is limited.\u003c\/p\u003e\u003cp\u003eFor replacement work, confirm the tank base, fitting thread, pickup arrangement, and overall fuel line layout before ordering. After installation, the system should be pressure tested to 3 psi for at least 10 minutes and checked for leaks by a method other than pressure decay.\u003c\/p\u003e\u003ch6\u003eCompatibility and use on board\u003c\/h6\u003e\u003cp\u003eThis valve suits boats with permanently installed below-deck fuel tanks that use pressure-relief fuel system components and need tank pressure controlled before it reaches the engine side of the line. It is a sensible match for builders, service yards, and owners replacing a valve in a compatible Attwood integrated fuel setup where clean hose routing, manual override access, and ethanol fuel compatibility matter.\u003c\/p\u003e","brand":"Attwood Marine","offers":[{"title":"Default Title","offer_id":52581858607285,"sku":"QBP759768","price":88.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1329186_qbp759768.jpg?v=1780200742","url":"https:\/\/www.qualityboatparts.com\/products\/qbp759768","provider":"Quality Boat Parts","version":"1.0","type":"link"}